Subject: publishing
From: Craig Chambers (chambers@cs.washington.edu)
Date: Fri Mar 23 2001 - 12:36:29 PST
I'm publishing some extensions to the Vortex compiler and runtime
system, including installing a new vortex executable. make-profile
runs properly on this new executable.
*) I added a "finish" command to the Vortex debugger. This command
runs the current function until it's about to return, then pops back
to the debugger. Doing finish again at a finish breakpoint returns
and then runs the caller until it finishes. This works for
interpreted code, too.
This is an initial implementation, which doesn't have all the
functionality one might want. Some ideas for improvement are:
1) It would be nice to be able to look at the object about to be
returned.
2) Finish only hits the breakpoint if the routine being finished was
not inlined. If it was inlined, then finish will just not stop, going
until the program ends or the next breakpoint is hit. Better would be
to stop at the next enclosing function end point, or the next call
after the inlined code returns, or something like that, to support at
least a kind of approximate finish. (The debug pragma can be used to
ensure that a function can have a breakpoint set on it, and also that
it can be finished properly.)
If you want to get e.g. your whirlwind compiler to be able to be
debugged using finish, you need to switch to my new vortex compiler
executable (or rebuild your own) and use it to recompile all whirlwind
files (or at least those files you want to be able to invoke finish
on).
-- Craig
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